/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex01-safe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 17:44:51,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 17:44:51,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 17:44:51,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 17:44:51,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 17:44:51,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 17:44:51,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 17:44:51,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 17:44:51,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 17:44:51,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 17:44:51,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 17:44:51,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 17:44:51,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 17:44:51,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 17:44:51,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 17:44:51,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 17:44:51,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 17:44:51,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 17:44:51,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 17:44:51,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 17:44:51,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 17:44:51,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 17:44:51,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 17:44:51,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 17:44:51,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 17:44:51,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 17:44:51,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 17:44:51,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 17:44:51,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf [2021-08-13 17:44:51,593 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 17:44:51,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 17:44:51,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 17:44:51,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 17:44:51,597 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 17:44:51,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 17:44:51,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 17:44:51,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 17:44:51,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 17:44:51,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 17:44:51,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 17:44:51,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 17:44:51,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 17:44:51,599 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 17:44:51,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 17:44:51,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 17:44:51,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 17:44:51,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 17:44:51,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 17:44:51,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 17:44:51,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 17:44:51,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 17:44:51,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 17:44:51,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 17:44:51,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 17:44:51,602 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 17:44:51,602 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 17:44:51,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 17:44:51,602 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 17:44:51,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 17:44:51,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 17:44:51,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 17:44:51,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 17:44:51,980 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 17:44:51,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex01-safe.c [2021-08-13 17:44:52,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd64e1f76/f5532bb984a648f981f3805c36060088/FLAG5c3088be9 [2021-08-13 17:44:52,423 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 17:44:52,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadMutex01-safe.c [2021-08-13 17:44:52,424 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-13 17:44:52,424 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-13 17:44:52,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd64e1f76/f5532bb984a648f981f3805c36060088/FLAG5c3088be9 [2021-08-13 17:44:52,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd64e1f76/f5532bb984a648f981f3805c36060088 [2021-08-13 17:44:52,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 17:44:52,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 17:44:52,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 17:44:52,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 17:44:52,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 17:44:52,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:44:52" (1/1) ... [2021-08-13 17:44:52,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc28c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:52, skipping insertion in model container [2021-08-13 17:44:52,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:44:52" (1/1) ... [2021-08-13 17:44:52,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 17:44:52,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 17:44:53,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 17:44:53,021 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 17:44:53,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 17:44:53,108 INFO L208 MainTranslator]: Completed translation [2021-08-13 17:44:53,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53 WrapperNode [2021-08-13 17:44:53,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 17:44:53,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 17:44:53,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 17:44:53,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 17:44:53,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 17:44:53,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 17:44:53,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 17:44:53,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 17:44:53,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... [2021-08-13 17:44:53,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 17:44:53,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 17:44:53,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 17:44:53,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 17:44:53,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 17:44:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-13 17:44:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-13 17:44:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 17:44:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 17:44:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 17:44:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 17:44:53,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 17:44:53,430 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-13 17:44:53,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:44:53 BoogieIcfgContainer [2021-08-13 17:44:53,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 17:44:53,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 17:44:53,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 17:44:53,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 17:44:53,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 05:44:52" (1/3) ... [2021-08-13 17:44:53,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:44:53, skipping insertion in model container [2021-08-13 17:44:53,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:44:53" (2/3) ... [2021-08-13 17:44:53,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:44:53, skipping insertion in model container [2021-08-13 17:44:53,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:44:53" (3/3) ... [2021-08-13 17:44:53,438 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadMutex01-safe.c [2021-08-13 17:44:53,442 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 17:44:53,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-13 17:44:53,462 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-13 17:44:53,479 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 17:44:53,479 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 17:44:53,479 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 17:44:53,479 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 17:44:53,479 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 17:44:53,480 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 17:44:53,480 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 17:44:53,480 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 17:44:53,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 11 transitions, 22 flow [2021-08-13 17:44:53,502 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2021-08-13 17:44:53,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 17:44:53,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 11 events. 1/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 17:44:53,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 11 places, 11 transitions, 22 flow [2021-08-13 17:44:53,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 8 places, 8 transitions, 16 flow [2021-08-13 17:44:53,508 INFO L129 PetriNetUnfolder]: 1/6 cut-off events. [2021-08-13 17:44:53,509 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 17:44:53,509 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:44:53,509 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-08-13 17:44:53,510 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:44:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:44:53,514 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-13 17:44:53,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:44:53,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584192283] [2021-08-13 17:44:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:44:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:44:53,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:44:53,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:44:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:44:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 17:44:53,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:44:53,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584192283] [2021-08-13 17:44:53,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584192283] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:44:53,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:44:53,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:44:53,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128194208] [2021-08-13 17:44:53,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:44:53,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:44:53,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:44:53,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:44:53,652 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 11 [2021-08-13 17:44:53,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 8 transitions, 16 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:44:53,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 11 [2021-08-13 17:44:53,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:44:53,663 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-08-13 17:44:53,664 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 17:44:53,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 17:44:53,665 INFO L132 encePairwiseOnDemand]: 9/11 looper letters, 1 selfloop transitions, 1 changer transitions 0/5 dead transitions. [2021-08-13 17:44:53,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 8 places, 5 transitions, 14 flow [2021-08-13 17:44:53,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:44:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:44:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2021-08-13 17:44:53,674 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2021-08-13 17:44:53,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:44:53,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,681 INFO L348 CegarLoopForPetriNet]: 8 programPoint places, 0 predicate places. [2021-08-13 17:44:53,681 INFO L482 AbstractCegarLoop]: Abstraction has has 8 places, 5 transitions, 14 flow [2021-08-13 17:44:53,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,682 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:44:53,682 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-08-13 17:44:53,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 17:44:53,682 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-08-13 17:44:53,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:44:53,683 INFO L82 PathProgramCache]: Analyzing trace with hash 28697735, now seen corresponding path program 1 times [2021-08-13 17:44:53,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:44:53,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300813877] [2021-08-13 17:44:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:44:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:44:53,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:44:53,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:44:53,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:44:53,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:44:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 17:44:53,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:44:53,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300813877] [2021-08-13 17:44:53,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300813877] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:44:53,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:44:53,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:44:53,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541879101] [2021-08-13 17:44:53,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:44:53,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:44:53,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:44:53,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:44:53,724 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 11 [2021-08-13 17:44:53,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 5 transitions, 14 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:44:53,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 11 [2021-08-13 17:44:53,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:44:53,729 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-08-13 17:44:53,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 17:44:53,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/4 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 17:44:53,729 INFO L132 encePairwiseOnDemand]: 9/11 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2021-08-13 17:44:53,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 8 places, 3 transitions, 14 flow [2021-08-13 17:44:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:44:53,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:44:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2021-08-13 17:44:53,731 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2021-08-13 17:44:53,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:44:53,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 21 transitions. [2021-08-13 17:44:53,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,733 INFO L348 CegarLoopForPetriNet]: 8 programPoint places, 0 predicate places. [2021-08-13 17:44:53,733 INFO L482 AbstractCegarLoop]: Abstraction has has 8 places, 3 transitions, 14 flow [2021-08-13 17:44:53,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:44:53,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 17:44:53,734 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Petri net based analysis cannot compute Hoare annotation. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeCFGHoareAnnotation(CegarLoopForPetriNet.java:691) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-13 17:44:53,737 INFO L168 Benchmark]: Toolchain (without parser) took 883.37 ms. Allocated memory is still 201.3 MB. Free memory was 164.9 MB in the beginning and 145.9 MB in the end (delta: 19.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-08-13 17:44:53,738 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 201.3 MB. Free memory is still 183.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 17:44:53,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.51 ms. Allocated memory is still 201.3 MB. Free memory was 164.7 MB in the beginning and 183.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-08-13 17:44:53,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 201.3 MB. Free memory was 183.6 MB in the beginning and 182.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 17:44:53,740 INFO L168 Benchmark]: Boogie Preprocessor took 25.93 ms. Allocated memory is still 201.3 MB. Free memory was 182.0 MB in the beginning and 181.5 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 17:44:53,740 INFO L168 Benchmark]: RCFGBuilder took 263.98 ms. Allocated memory is still 201.3 MB. Free memory was 181.5 MB in the beginning and 169.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-13 17:44:53,741 INFO L168 Benchmark]: TraceAbstraction took 303.47 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 145.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-13 17:44:53,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 201.3 MB. Free memory is still 183.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 254.51 ms. Allocated memory is still 201.3 MB. Free memory was 164.7 MB in the beginning and 183.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 201.3 MB. Free memory was 183.6 MB in the beginning and 182.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.93 ms. Allocated memory is still 201.3 MB. Free memory was 182.0 MB in the beginning and 181.5 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 263.98 ms. Allocated memory is still 201.3 MB. Free memory was 181.5 MB in the beginning and 169.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 303.47 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 145.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Petri net based analysis cannot compute Hoare annotation. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Petri net based analysis cannot compute Hoare annotation.: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeCFGHoareAnnotation(CegarLoopForPetriNet.java:691) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...